#!/bin/bash

# IMPORTANT: This script is sourced (not executed) by the webdevops entrypoint.
# Never use "exit" — it would kill the parent entrypoint and prevent supervisord from starting.
# Use "return" instead to leave this script without affecting the parent.

echo ">>> Waiting for database connection..."
echo ">>> DB_HOST=${DB_HOST:-NOT SET}"
echo ">>> DB_PORT=${DB_PORT:-NOT SET}"
echo ">>> DB_DATABASE=${DB_DATABASE:-NOT SET}"
echo ">>> DB_USERNAME=${DB_USERNAME:-NOT SET}"
echo ">>> DB_PASSWORD is $([ -n "$DB_PASSWORD" ] && echo 'set' || echo 'NOT SET')"

if [ -z "$DB_HOST" ] || [ -z "$DB_USERNAME" ]; then
    echo ">>> ERROR: DB_HOST or DB_USERNAME not set. Skipping migrations."
    return 0 2>/dev/null || true
fi

_migrate_max_retries=30
_migrate_count=0
_migrate_done=false

while [ $_migrate_count -lt $_migrate_max_retries ]; do
    if php -r '
        try {
            $host = getenv("DB_HOST");
            $port = getenv("DB_PORT") ?: "3306";
            $user = getenv("DB_USERNAME");
            $pass = getenv("DB_PASSWORD");
            new PDO("mysql:host=$host;port=$port", $user, $pass, [PDO::ATTR_TIMEOUT => 3]);
            exit(0);
        } catch (Throwable $e) {
            fwrite(STDERR, "PDO error: " . $e->getMessage() . "\n");
            exit(1);
        }
    ' 2>&1; then
        echo ">>> Database is reachable. Running migrations..."
        if php /app/migrate.php; then
            echo ">>> Migrations completed successfully."
        else
            echo ">>> WARNING: migrate.php exited with code $?"
        fi
        _migrate_done=true
        break
    fi

    _migrate_count=$((_migrate_count + 1))
    echo ">>> Waiting for database... attempt $_migrate_count/$_migrate_max_retries"
    sleep 2
done

if [ "$_migrate_done" = false ]; then
    echo ">>> WARNING: Could not connect to database after $_migrate_max_retries attempts. Skipping migrations."
fi